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标签归档:ext4 lvm扩容
ext4 lvm在线扩容
文件系统格式
[root@xifenfei~]# uname -a Linux datacenter 4.1.12-61.1.28.el6uek.x86_64 #2 SMP Thu Feb 23 20:03:53 PST 2017 x86_64 x86_64 x86_64 GNU/Linux [root@xifenfei~]# mount /dev/mapper/vg_datacenter-lv_root on / type ext4 (rw) proc on /proc type proc (rw) sysfs on /sys type sysfs (rw) devpts on /dev/pts type devpts (rw,gid=5,mode=620) tmpfs on /dev/shm type tmpfs (rw) /dev/sda1 on /boot type ext4 (rw) /dev/mapper/vg_datacenter-lv_home on /home type ext4 (rw) /dev/mapper/vg_datacenter-lvu01 on /u01 type ext4 (rw) /dev/sdb1 on /oracle_data type ext4 (rw) none on /proc/sys/fs/binfmt_misc type binfmt_misc (rw) sunrpc on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw) [root@datacenter ~]#
linux扫描新磁盘
[root@xifenfei ~]# ls /sys/class/scsi_host/ host0 host1 host2 [root@xifenfei ~]# echo '- - -' > /sys/class/scsi_host/host0/scan [root@xifenfei ~]# echo '- - -' > /sys/class/scsi_host/host1/scan [root@xifenfei ~]# echo '- - -' > /sys/class/scsi_host/host2/scan
vg扩容
[root@xifenfei ~]# pvcreate /dev/sdc1 Physical volume "/dev/sdc1" successfully created [root@xifenfei ~]# vgs VG #PV #LV #SN Attr VSize VFree vg_xifenfei 1 4 0 wz--n- 499.51g 584.00m [root@xifenfei ~]# vgextend vg_xifenfei /dev/sdc1 Volume group "vg_xifenfei" successfully extended [root@xifenfei ~]# vgs VG #PV #LV #SN Attr VSize VFree vg_xifenfei 2 4 0 wz--n- 999.50g 500.56g
lv进行扩容
[root@xifenfei ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_xifenfei-lv_root 50G 6.4G 41G 14% / tmpfs 63G 0 63G 0% /dev/shm /dev/sda1 477M 84M 364M 19% /boot /dev/mapper/vg_xifenfei-lv_home 1.9G 29M 1.8G 2% /home /dev/mapper/vg_xifenfei-lvu01 436G 335G 80G 81% /u01 /dev/sdb1 985G 462G 473G 50% /oracle_data [root@xifenfei ~]# lvresize -L +500G /dev/mapper/vg_xifenfei-lvu01 Size of logical volume vg_xifenfei/lvu01 changed from 443.00 GiB (113408 extents) to 943.00 GiB (241408 extents). Logical volume lvu01 successfully resized. [root@xifenfei ~]# resize2fs /dev/mapper/vg_xifenfei-lvu01 resize2fs 1.43-WIP (20-Jun-2013) Filesystem at /dev/mapper/vg_xifenfei-lvu01 is mounted on /u01; on-line resizing required old_desc_blocks = 28, new_desc_blocks = 59 The filesystem on /dev/mapper/vg_xifenfei-lvu01 is now 247201792 blocks long. [root@xifenfei ~]# df -h Filesystem Size Used Avail Use% Mounted on /dev/mapper/vg_xifenfei-lv_root 50G 6.4G 41G 14% / tmpfs 63G 0 63G 0% /dev/shm /dev/sda1 477M 84M 364M 19% /boot /dev/mapper/vg_xifenfei-lv_home 1.9G 29M 1.8G 2% /home /dev/mapper/vg_xifenfei-lvu01 929G 335G 552G 38% /u01 /dev/sdb1 985G 462G 473G 50% /oracle_data